US Patent 11396579 Polyester film and manufacturing method thereof
Patent 11396579 was granted and assigned to SK Chemicals on July, 2022 by the United States Patent and Trademark Office.
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Patent Inventor Names
Boo-youn Lee0
Sung-Gi Kim0
Yoo Jin Lee0
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Patent Applicant
Current Assignee
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Patent Number
113965790
Date of Patent
July 26, 2022
0Patent Application Number
166251140
Date Filed
June 25, 2018
0Patent Citations Received
Patent Primary Examiner
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Article (+420 characters)
US Patent 11396579 Polyester film and manufacturing method thereof
Article
The present invention relates to a polyester film and a preparation method thereof. The polyester film is formed of a polyester resin having a specific content of isosorbide and diethylene glycol introduced therein, containing a low content of oligomer, and exhibiting a specific intrinsic viscosity, thereby exhibiting excellent mechanical properties, heat resistance and chemical resistance, and good heat sealability.
Infobox
Is a
Patent applicant
Current assignee
Patent jurisdiction
Patent number
11396579
Date of patent
July 26, 2022
Patent application number
16625114
Date Filed
June 25, 2018
Patent primary examiner
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